Car-coupling.



R. E. L. JANNEY.

CAR COUPLING.

APPLlCATION FILED APR-3.1913.

R. E. L. JANNEY.

CAR COUPLING.

APPLICATION FILED APR.3. 1913.

Patented Apr. 13, 1915.

2 SHEETS-SHEET 2.

UNITED STATES PATEN OFFICE.

ROBERT E. L. JANNEY, OF CHICAGO, ILLINOIS, ASSIGNQR T AMERICAN STEEL FOUNDRIES, OF NEW YORK, N. Y., A CORPORATION'OE NEW v a citizen of the United States, and resident 1 wedge times by of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Car-Couplers, of which the following is a specification.

My invention relates to car couplers and has particular reference to a novel knuckle 1 and cooperating wedge lock;

p In the application of E. P. Kinne,Serial No. 716,939, filed August 26, 1912, there was disclosed a coupler having a wedge lock, said lock cooperating with a knuckle having pulling lugs, the pulling faces of which lugs were eccentric to the pivot pin, the action of the wedge lock t'nding to force the eccentric lugs into close'engagement with similar surfaces "on the-coupler head. Thus the knuckle washeld tightly closed and pulling strains were transferred to the pulling lugs and removed from the pivot pin. It has been found in practice that such an arrangement is satisfactory under ordinary conditions the exception being the condition in which the lock is held impartially raised position, being caught. in this position someback-lash and other times by creepiriiig, in which case the pulling lugs are ine ective and the entire pulling strain falls on the pivot pin. This tends to deflect or break the pin and it is to the overcoming of such objections that the present invention is directed. v

- It will be noted that in the present construction the pulling lugs are concentric with the piYOt pin. Also allowed between the pivot pin and the walls of the a erturethrough the knuckle hub. A result 0 this arrangement is that the pulling strains are taken directly-by the pulling lugs irrespective of the position of the knuckle or the location of the wedge look. In the normal'p'osition, the wedge lock will tiIgIhtly curves or due to back-lash in coupling that thelock is caught in mid position. Because of the wedge construction of the lock the knuckle" remains-partially open and without the concentric pulling lugs the pulling strains .would be taken-up by the pivot pin.

The invention will be more readily understood by reference to the accompanying drawings, wherein,

Specification of Letters Patent.

spectively that some clearance is JERSEY. A

PatentedApr. 13, 1915.

Application filed April 3, 1913. Serial No. 758,601.

Figure 1 is a plan view of a coupler constructed in accordance with my invention; Fig.2 is a transverse vertical'section showing a preferred form of wedge'lock; Fig. 3 is an inverted plan view partly in section, showing the bottom pulling lug, and, Fig. 4 is a longitudinal vertical section showing the pulling lugs more clearly.

Referring more particularly to the drawings it will be seen that I provide a coupler head 10, having a knuckle 11, pivoted to the head by means of a pin 12, there being considerable clearness 13, between the pin and the walls of the apertures through the knuckle. On the interior wall of the coupler head I provide guides 14, slightly inclined from the vertical, w1th which a lock 15 cooperates, the portion of the lock contacting the guides 14 being shaped to correspond to the angle of the guides. The knuckle is provided with a tail 16, having a locking face 17, against which the locking block abuts when in looking position. A knuckle thrower 18 is pivoted within a coupler head'and is adapted to be rotated by contact with the upper edge of the lock 'when the lock is lifted to unlocking position. Also formed on the inner wall of the coupler head are projections or ribs 19, 20, having the rear face thereof formed by an 'arc concentric with the pivot pin. These ribs extend into the plane of the knuckle tail and cooperate with similar ribs 21, 22, formed on the upper and lower faces reof the knuckle tail. The forward surfaces of the ribs 21,22, are likewise curved to correspond to the curvature of the ribs 19,- 20, the surfaces being in contact during the pulling action. Thisv is clearly shown in Figs. 1 and 3, in which-the knuckle is pulled forward to its extreme limit, the-cooperating ribs on the head and knuckle tail being in engagement, the knuckle not being in engagement with the pivot pin.

In case the lock is only partially seated the knuckle will not be entirely closed due to the and pulling strains will be taken up thereby as completel as when the 'knuckleis fully closed. Un er bufiin strains the blow is preferably taken up y the contact of the hub portions 23 with the ears 24, although the cooperatin ribs are arranged to take up such blows ..i desired. In such' case the lot bufiing blow will betaken up partially by the upstanding rib 25, as shown in will be seen that by the arran ement shown, the pulling force is taken up y the-pulling lugs irrespective of the position of the knuckle, no strainbeing thrown on the pivot p111, v

It is obvious that modifications me be made and such modifications as are wlthin the scope of my claims I consider within the spirit of my invention. Y

Iclaim: W

1. In a car cou let, the combination of a head, a pivoted wedge lock-for said knuckle,'and 006 erating abutments on said head and tail, sa1dabutments being curved, the curve being substantially concentric with the knuckle pivot,1

Fig. 4. It"

-. with the pivot pin,

uckle having a 'tail,. a

by the whereby pulling force is taken up y seated,

abutments when said lock is partial substantially as described. H

2 In a car coupler, the combination of a head, a, knuckle pivoted in said head there being substantial clearance between the pivot pin'and the knuckle, a wedge lock, a palling ug having'a surface substantially coiintiic said pullin .lug' cooperating with a similarly curved a utment on said knuckle tail whereby pulling strains are taken up by said 111 "when said lockfis partially seated, substantially as described.

' ROBERT ELLJANNEY.

Witnesses: I I I CHAS. F MURRAY, T. D Biirnnx. 

